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The Duration of Humoral Immunity and the Memory Cell Function After Vaccination With 7-valent Pneumococcal Conjugate Vaccine in CLL (KLL2)

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00919321
Recruitment Status : Completed
First Posted : June 12, 2009
Last Update Posted : February 19, 2014
Turku University Hospital
Finnish Institute for Health and Welfare
Information provided by (Responsible Party):
MSinisalo, Tampere University Hospital

Brief Summary:

Patients with chronic lymphocytic leukemia (CLL)have had very poor humoral responses to pneumococcal polysaccharide vaccine (PPV). The vaccine in which pneumococcal polysaccharide antigens are conjugated to protein (PCV) have been immunogenic in CLL patients in our previous studies.

The purpose of this study is to evaluate the duration of these vaccine-induced antibodies and the function of memory cells by giving a one dose of PPV-vaccine after several years of PCV-vaccination.

Condition or disease Intervention/treatment Phase
Chronic Lymphocytic Leukemia (CLL) Biological: Pneumococcal polysaccharide vaccine (PPV) Phase 4

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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 32 participants
Allocation: Non-Randomized
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Prevention
Study Start Date : June 2009
Actual Primary Completion Date : December 2013
Actual Study Completion Date : December 2013

Arm Intervention/treatment
PPV Biological: Pneumococcal polysaccharide vaccine (PPV)
One intramuscular injection

Primary Outcome Measures :
  1. Antibody response [ Time Frame: 1-3 months ]

Information from the National Library of Medicine

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Ages Eligible for Study:   45 Years to 90 Years   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • CLL patients and controls who have been vaccinated with PCV in our previous study

Exclusion Criteria:

  • Vaccinated with PPV-vaccine within the last 5 years, immunoglobulin substitution, corticosteroid treatment (equivalent of 20mg prednisolone per day)

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT00919321

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Tampere University Hospital
Tampere, Finland, FIN 33521
Sponsors and Collaborators
Tampere University Hospital
Turku University Hospital
Finnish Institute for Health and Welfare
Publications automatically indexed to this study by Identifier (NCT Number):
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Responsible Party: MSinisalo, Dr, Tampere University Hospital Identifier: NCT00919321    
Other Study ID Numbers: R09082M
2009-012099-29 ( EudraCT Number )
First Posted: June 12, 2009    Key Record Dates
Last Update Posted: February 19, 2014
Last Verified: March 2012
Keywords provided by MSinisalo, Tampere University Hospital:
Additional relevant MeSH terms:
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Leukemia, Lymphocytic, Chronic, B-Cell
Leukemia, Lymphoid
Neoplasms by Histologic Type
Lymphoproliferative Disorders
Lymphatic Diseases
Immunoproliferative Disorders
Immune System Diseases
Leukemia, B-Cell
Heptavalent Pneumococcal Conjugate Vaccine
Immunologic Factors
Physiological Effects of Drugs